/*需要手动传入需要处理的数据以及根节点的id（parentId）*/
dealNavLsit(data,parentId){
			 var tree = [];
		        var temp;
		        for (var i = 0; i < data.length; i++) {
		            if (data[i].parentId == parentId) {
		                var obj = data[i];
		                temp = this.dealNavLsit(data, data[i].id);
		                if (temp.length > 0) {
		                 obj.children = temp;
		                }
		                tree.push(obj);
		            }
		        }
		        return tree;
			},